Diorite is a gray to dark gray intrusive igneous rock. It can also be black and a blueish gray. It may sometimes have a greenish cast. diorite has the same structural properties as granite but only darker.
What is the grain size? Diorite has a medium grain size.
What minerals are found in it?
Diorite is composed mainly of plagioclase feldspars or also known as andesine, biotite, and hornblende. it also has small amounts of quartz, microcline, olivine, zicon, apatite, and magnetite. (English PLEASE!!!!)
How and where does diorite form?
it is formed deep in the Earth's crust from slowly cooling magma. it can be found in many mountain ranges that used to be volcanoes, like the Andes and Sierra Nevada Mountains. (you getting all this?)
What could it possibly be used for?? diorite is very hard and in the past has been used for structural stones and pavement cobblestones. it has also been used to make statues, and can take a high polish!!!
˜Diorite˜
Brady Wicks, and Logan nampooK
˜Diorite!!˜ (say that 5 times fast!)
Diorite is a gray to dark gray intrusive igneous rock. It can also be black and a blueish gray. It may sometimes have a greenish cast. diorite has the same structural properties as granite but only darker.
What is the grain size?
Diorite has a medium grain size.
What minerals are found in it?
Diorite is composed mainly of plagioclase feldspars or also known as andesine, biotite, and hornblende. it also has small amounts of quartz, microcline, olivine, zicon, apatite, and magnetite. (English PLEASE!!!!)
How and where does diorite form?
it is formed deep in the Earth's crust from slowly cooling magma. it can be found in many mountain ranges that used to be volcanoes, like the Andes and Sierra Nevada Mountains. (you getting all this?)
What could it possibly be used for??
diorite is very hard and in the past has been used for structural stones and pavement cobblestones. it has also been used to make statues, and can take a high polish!!!
http://en.wikipedia.org/wiki/Diorite
http://geology.csupomona.edu/alert/igneous/diorite.htm
http://www.galleries.com/rocks/diorite.htm
http://www.minsocam.org/msa/collectors_corner/id/rock_key.htm#diorite
http://www.rockhounds.com/rockshop/rockkey/index.html
http://geology.com/rocks/pictures/quartz-diorite.jpg (image)
http://www.sargbay.ca/Diorite.jpg (image)
http://lh6.ggpht.com/_pLTmeHxvERI/SuQlNQnYlbI/AAAAAAAAGQ4/YSfxufIMUEQ/Fig03_10.jpg (image)
http://csmres.jmu.edu/geollab/Fichter/IgnRx/HTMLimag/Diorite-3A1.11.JPG (image)
http://c0278592.cdn.cloudfiles.rackspacecloud.com/medium/219766.jpg (image)
http://www.sargbay.ca/Diorite.jpg (image)